Loading ...
Loading ...
Loading ...
VD (E3.1) 10/2020 page 51/179
Install a pressure reducer for inert gas operation. Set the pressure reducer to a pressure slightly above
ambient pressure. Ensure that the pressure reducer will open. Do not change this setting in order to avoid
perturbation inside the oven and release of big quantities of inert gas after flooding the VD.
For ventilation an inert gas, e.g., nitrogen, is led into the inner chamber via the connection (4) or the
optional connection (5), until pressure compensation with the atmosphere occurs. Depending on the
individual application, you can perform a second evacuation and repeat the inert gas flooding.
When the inert gas fine dosing valve is open, a maximum of approx. 0.6 m³/h gas flows into the inner
chamber. The introduction of inert gas by under-flooding in the lower region of the inner chamber rear
wall and the extraction at the inner chamber ceiling allow an effective inert gas flushing.
If the oven is charged to full capacity, depending on the load, deviations from the specified
heating up times may occur.
7. Set-point entry
Setting ranges Control ranges
Temperature
0.0 °C / 32 °F up to 220.0 °C / 428 °F
10 °C / 18 °F above ambient temperature up to
220 ºC / 428 °F
Pressure 0 mbar up to 1100 mbar 0 mbar up to 1100 mbar
7.1 RD4 controller
7.1.1 Temperature set-point entry
Required access level: “User”.
Path: Normal display Setpoints Temperature
Press the OK button to enable the setting.
Temperature setting.
The current setting flashes. Enter the desired set-point with the arrow
buttons.
Confirm the entry with the OK button.
Temperature
With the arrow-down button you can continue with the pressure set-point entry (chap. 7.1.2).
With the Back button you can go back to the “Setpoints” submenu and, repeatedly pressing it, to
Normal display.
With safety controller mode “Limit”, adapt the safety controller always when you changed the
temperature set-point. Set the safety controller value by approx. 5 °C above the temperature
set-point (chap. 11.2.2).
Recommended setting: safety controller mode “Offset” with safety controller value 5 °C.
Loading ...
Loading ...
Loading ...